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Technical Data Sheet
PartsTable / COMPONENT / 40777-2 PC.NO.23
40777-2 PC.NO.23 ✓ Verified by PartsTable
— · GATE VALVE
WHAT YOU NEED TO KNOW
Full open or full close only — never throttle Rising stem shows position visually
Throttling a gate valve erodes seats
PRODUCT OVERVIEW

The 40777-2 PC.NO.23 is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-584-6456, indicating validated use in U.S.

government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
40777-2 PC.NO.23
NSN: 4820-01-584-6456
FSC: 4820
CAGE: 55378 — TRAC REGULATOR CO., INC. DBA TRAC REGULATOR CO INC (USA)
SPECIFICATIONS
Part Number40777-2 PC.NO.23
NSN4820-01-584-6456
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 40777-2 PC.NO.23 · OEM ⚠ VERIFY BEFORE ORDERING Gate valves = FULL OPEN or FULL CLOSE only — never throttle. Partial opening causes seat erosion and vibration. ✓ BROKER TIP Rising stem shows valve position visually — easier maintenance. Non-rising stem saves headroom. PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
VALVE MODEL NUMBER FOR WHICH DESIGNED: 40777-2
•
MATERIAL: STEEL CORROSION RESISTING
•
VALVE SIZE FOR WHICH DESIGNED: 2.500 INCHES IN
TECHNICAL CHARACTERISTICS (FLIS)
END ITEM IDENTIFICATIONNEW CONSTRUCTION LHA6
VALVE MODEL NUMBER FOR WHICH DESIGNED40777-2
PART NAME ASSIGNED BY CONTROLLING AGENCYSTEM,VALVE
MATERIALSTEEL CORROSION RESISTING
VALVE SIZE FOR WHICH DESIGNED2.500 INCHES IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
434-0039-002Interchangeable
interchangeable cross-reference
interchangeable
302-0644-030Interchangeable
interchangeable cross-reference
interchangeable
950139-5Interchangeable
interchangeable cross-reference
interchangeable
SM-B-187379Interchangeable
interchangeable cross-reference
interchangeable
56106Interchangeable
interchangeable cross-reference
interchangeable
HV10921Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 40777-2 PC.NO.23?
40777-2 PC.NO.23 is a 40777-2 PC.NO.23.
What parts can replace 40777-2 PC.NO.23?
There are 8 known substitutes for 40777-2 PC.NO.23: 434-0039-002, 302-0644-030, 950139-5 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 40777-2 PC.NO.23?
40777-2 PC.NO.23 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-584-6456. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026